Before you are thinking about selling, think twice. Bitcoin can pump insanely high since the marketcap is really small and it can potentially go to 100.000+ per coin long term, so 600 to 1000 is absolutely nothing.
The next months will be fun.
11 days?? It took only 9!!
A bubble like that is not desirable. Those who got in at the wrong moment had to wait years before they could break even. It is better to have a consistent, sustained increase.